Finding the Fourth Proportional to 10,870.91, 16,309.61 and 6,250.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.91 : 16,309.61 = 6,250.67 : x
2. Step 2: Convert to fraction form
   10,870.91/16,309.61 = 6,250.67/x
3. Step 3: Cross multiply
   10,870.91x = 16,309.61 × 6,250.67
4. Step 4: Simplify right side
   10,870.91x = 101,945,989.94
5. Step 5: Solve for x
   x = 101,945,989.94/10,870.91
6. Step 6: Final answer
   x = 9,377.87